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Professor Hashimoto Tatsuaki who leads the OMOTENASHI team reports here with sad news about the CubeSat Moon lander. After separation from the SLS, the radio signal from the CubeSat was unstable and it was difficult to get telemetry from NASA’s Deep Space Network Madrid station.
When OMOTENASHI finally locked with the ground station, the solar cells were found to be facing away from the Sun but the CubeSat was rotating fast. Rather than using the attitude control to redirect the solar cells, the team therefore released a gas jet to stop the spin.
But as the battery voltage dropped, the team switched from stopping spin to using the gas jet to change the spin axis to point the solar cells towards the Sun. But as Madrid went out of range, the transmitter turned off due to lack of voltage. Communication has not been restored.
Read 27 tweets
Chwila oddechu, pogadajmy o misji #ArtemisI.
Dzisiaj na orbitę Księżyca nie poleciały drożdże, grzyby, algi i trzy manekiny, nie mówiąc o kapsule, rakiecie i naszych nadziejach na powrót do podboju kosmosu. No to po kolei #kosmicznyfavoreq
1/n
O samej misji nie będę pisać; możecie zajrzeć na strony misji:
esa.int/Science_Explor…

nasa.gov/specials/artem…
Dzisiejszy poranek (wczesne popołudnie naszego czasu) był jednym wielkim suspensem: poleci? nie poleci? Moim zdaniem decyzja kontroli lotów była najlepszą, jaką można było w tym momencie podjąć – i o tym będzie ta nitka. 3/n
Read 17 tweets

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